Liquid spray arrangements



Feb. 14, 1961 R5155 2,971,699

LIQUID SPRAY ARRANGEMENTS Filed Feb. 5, 1958 4 Sheets-Sheet 1 Inventor AK A 6 av 867:;

Feb. 14, 1961 A. REISS 2,971,699

LIQUID SPRAY ARRANGEMENTS Filed Feb. 5, 1958 4 Sheets-Sheet 2 Inventor fiz/ arrdzzrx Feb. 14, 1961 A. REISS LIQUID SPRAY ARRANGEMENTS 4 Sheets-Sheet 3 Filed Feb. 5, 1958 Inventor fll/fflsr 25265 Feb. 14, 1961 A. REISS 2,971,699

I LIQUID SPRAY ARRANGEMENTS Filed Feb. 5, 1958 4 Sheets-Sheet 4 Inventor LIQUID SPRAY ARRANGEMENTS August Reiss, London, England, assignor to The Reiss Engineering Company Limited, Stanmore, England, a British company Filed Feb. 5, 1958, Ser. No. 713,403

Claims priority, application Great Britain Feb. 27, 1957 2 Claims. (Cl. 239-484) The invention relates to liquid spray arrangements.

It is an object of the invention to provide an improved liquid spray arrangement. for use, for example, in connection with paper and board making equipment, such as moving wires, drums, strainers, felts.

It is a further object of the invention to provide .such a liquid spray arrangement in which moving spray means are provided.

It is a still further object of the invention to provide a movable liquid spray arrangement which operates auto matically.

These and other objects and advantages of the invention will become apparent to-those skilled in the art from the following description when read in conjunction with the accompanying drawings which by way of example illustrate specific embodiments of the invention and in which:

Fig. l is a fragmentary view, somewhat diagrammatical of an arrangement of the invention;

Fig. 2 is a sectional view' of a friction drive roller of the arrangement of Fig. 1, the view being taken on the line H-II of Fig. 1;

Fig. 3 is a sectional view of part of the arrangement of Fig. 1, but to a larger scale than Fig. 1, the view being taken on the line ur ru of Fig. 1;

Fig. 4 is a plan view, partly in section and partly broken away, of a modified arrangement;

Fig. 5 is an elevational view of part of the arrangement of Fig. 4;

Fig. 6 illustrates a detail of the arrangement of Figs. 4 and 5 partly in section and partly broken away, to a larger scale than Figs. 4 and 5; and

Fig. 7 illustrates a modification of the detail of Fig. 6.

The arrangement illustrated in Figs. 1 and 2 comprises a guide tube 1 within which a cylindrical block 2 constituting a spray head is slidably arranged. A spray nozzle adaptor 3 in the form of a length of tube, is connected to the block 2, the adaptor 3 passing through a slot 4 in the guide tube 1. The free end of the spray nozzle adaptor 3 is provided with a suitable spray nozzle 5. A supply hose 6, part of which-is arranged within the slotted guide tube 1, is connected by a hose adaptor 7 to the block 2 which has a passage 8 machinedtherein which enables the supply hose 6 to communicate with the spray nozzle adaptor 3.

At one end of the slotted guide tube 1 a housing 11 is provided in which friction drive rollers 12 are arranged,

which have concave co-operating faces 29 between which the supply hose 6 extends. Conventional spring means (not shown) are provided to press the friction drive roll-, ers 12 against the supply hose 6. An electric motor 13 is connected through a reduction gear 14 and a drive member 15 to one of the rollers 12. Two adjustable reversing switches 16 which are connected to the motor 13 by connecting wires 19, and which are operable by a stop 17 riding on a screw threaded spindle 18 rotatable by the electric motor 13 serve to cause reversal of the direction of rotation of the motor 13 when the stop 17 reaches one or the other of the reversing switches 16.

The arrangement operates as follows:

When water under pressure is supplied to the supply hose 6a spray of water is created by and emerges from the spray nozzle 5. Rotation of the electric motor 13 causes the friction drive roller 12 which is driven by' the electric motor 13 to rotate, whereby the supply hose 6 is continuously moved in the longitudinal direction of the slotted guide tube 1, the spray head block 2, the nozzle adaptor 3, which extends through the slot 4 of the tube 1, and the spray nozzle 5 being moved together with the supply hose 6.

When the spray nozzle 5 has thus been caused to move by a certain amount, one of the reversing switches 16 is operated by the stop 17, whereby the electric motor 13 is reversed, with the result that the direction of movement of the spray nozzle 5 is reversed. After reverse movement of the spray nozzle 5 by a certain amount, the other reversing switch 16 is operated by the stop 17 and the electric motor 13 is again reversed, and so on. Thereby, the spray nozzle 5 is caused to move to and fro with respect to the slotted guidetubel in which the block 2 is guided, the extent of the to. and fro movement depend; ing on the positions to which the reversing switches 16.

have'b'eenset.

In the modified arrangement of Figs. 4 to,6, more spray nozzles than one are provided and fed from the same supply hose and guided by the cooperation of a spray head with the slotted guide tube. The arrangement comprises a guide tube 101 having a slot 104. Two spray heads in the shape of cylindrical blocks 192 and 1021 are slidably arranged in the guide tube 101, each block carrying a spray nozzle adaptor 103 and 1031 respectively. The block 102 has a T-shaped passage 108 communicating with a supply hose adaptor 109, the spray nozzle adaptor 103 and a pipe 121, which leads to the spray nozzle adaptor 1031 and communicates through a passage 1081 in the block 1021 with the spray nozzle adaptor 1031. Two further adaptors 1032 and 1034 branch off from the pipe 121. Each adaptor extends through the slot 104 in the tube 101 and carries at its free end a spray nozzle 105. All the adaptors are parallel to one another and perpendicular to the axis of the pipe 121. The blocks 102 and 1021 are slidable in the tube 101 and are guided thereby. The supply hose 106 passes between three friction drive rollers 112 operated by an electric motor 113 through a reduction gear box 114 and a clutch 124. Two reversing switches 116 are provided which are connected to the motor 113 by connecting wires 119, and which cooperate with stops 117 provided on the hose 106. A roller 122 bears against the hose 106 and is rotatable thereby. A lever 123 serves to actuate the clutch 124, by means of a linkage shown diagrammatically by the dash dotted line 1124.

It is believed that the operation of the modified arrangement needs no further explanation. When the arrangernent is used, for example, for cleaning a Wire or felt,-say of a Fourdrinier paper making machine, whIch has the width W, then the distance between adjacent nozzles (see Fig. 6) should not be smaller than W/4.

In the modification of Fig. 7, all the spray nozzle adaptors 3031, 3034, 3032, and' 303 are provided on guide blocks 3021, 3024, 3022 and 302. Each spray nozzle adaptor carries at its free end a spray nozzle 305. All the adaptors are parallel to each other, and extend perpendicular to the axes of pipes 321, 322 and 323 which respectively interconnect the blocks 302 and 3022; 3022 and 3024; 3024 and 3021. The block 302 has a T-shaped passage 308 communicating with a sup- Patented Feb. 14, 19st ply hose adaptor 309, the spray nozzle adaptor 303 and the pipe 321.

It should be clearly understood that the embodiments 1. Afliquid spray arrangement comprising a flexible supply hose for delivering a liquid under pressure, a block having a liquid passage therethrough and being connected to saidsupply. hose with one end of said passage communicating with said ho se at theidelivery endthereof, elongated spray means connected to said block at anotherend of said passage and communicating through said passage with said supply hose to receive liquid therefrom, saidtspray means being arranged substantially perpendicularly to the axis of the delivery end of said supply hose, an elongated guide tube having a slot extending in the longitudinal direction thereof, said guide tube accommodating snugly said block, said block being movable without substantial play within said guide tube in the longitudinal direction thereof, said supply hose entering said guide tube at one end and said spray means protruding. from said guide tube through said slot, and drive means arranged outside said guide tube and immediately adjacent said one end of; said guide tube and adapted to act on said supply hose fortrictionally reciprocating the same in the longitudinal direction of'said z?- and comprising a pipe within said tube, said pipe being substantially co-axial with the delivery endof said supply hose, one end of said pipe being connected to said block and communicating with the passage therein and through said passage with the delivery end of said supply tube, at least two additional elongated spray means both arranged substantially perpendicularly to said pipe and protruding from said. guide tube, through said slot,

one of said spray means being connected to said pipe to communicate directly therewith, andan additional block snugly accommodated within said guide tube, said additional block having a liquid passage therethrough and being connected to. the other end of said pipe with one end of the passage of the auxiliary block communicating with the interior of said pipe, the other additional spray means being connected to said additional block at another end of the passage therein and communicating through said passage with said pipe, said additional block being movable without substantial playwithinsaid guide tube in the longitudinal direction thereof. 7

' References Cited in the file of this patent UNITED STATES PATENTS 998,579 Herz July 18, 1911 1,630,972 Schmid L May 31, 1927 1,888,575 Scofield Nov. 22, 1932 2,194,071 Hine Mar. 19,- 1940 r 2,226,668 Newman Dec. 31, 1940 2,587,473 Holveck et a1; Feb. 26, 1952 2,660,471 Egly et a1. Nov. 24, 1953 

